Railway construction.



H J. H. ZERKES. RKILWAY GONSTRUGTION. AIPLIUATIOII FILED OUT. 24, 1907.

e 1nvention includes a novel. form of vided with the usual eccentrically arranged way spikes.

TED STATES PATENT @FFEQE.

iA Es HUSTON YERKES, or I;I;l1hND,OALIFORNIA. nArLwAi CONSTRUCTION.

No. 907,938. Specification of Letters Patent. Patented Dec. 29, 1908. Application filed October 24, 1907. Serial No. 899,061.

from such surface to the line of the shank of p the spike. Said shoulder projects from the face of the shank of the spike that is adjacent to the face of such shank from which the head main y projects. The slots 3, 3 are each of a size and sha e to accommodate the spike shank at the s iouldered portion, so that the s ike may be driven down into-the tie 1, t rough the slot in the plate provided there- 5 for, thus bringing the top of the shoulder 8 into position flush with theunder-face of the plate 2.

9 and 10 designate barbs a short distance i above a point 11 and on the'outer and inner To all whom it may concern:

Be it known that I, JAMES HUsToN Ynnkns, a citizen of the United States, residing at Highland, in the county of San s'Bernardino and State of California, have invented new and useful Im rovements in Railway Construction, of which the following is a specification object. of this invention is to provide 10 cheap, simple, convenient and practical means whereby all danger of the spikes becoming loose from the ties by the effects of heat, atrnos heric changes and vibrations of the rail, will be avoided.

spike, and also the combination with the tie and rail, of a speciall constructed tie-plate and a"specially-constructed spike. mainly projects and the other barb is on the e accom anying drawings illustrate the opposite side of the spike shank. The barbs 20 invention. igure 1 is a perspective view of may be located at a greater or less distance a novel spike that forms part of this invenfrom the point of the spike within the judg- 1g. 2 is a fragmental section transment of the constructor. Each spike is proversea'rail ofa railway embodying this invided at the point 11 thereof and on the vention. Fig. 3 is a fragmental section on same side of the shank as the shoulder with 25 line x -w Figs. 2 and 4 Fig. 4 is a fra abeveled face 12, so that when the spike is irregular line x r*, Fig. 2. with the flat face of the shank that'is oppodesignates a railway tie; 2 an apertured site the shouldered and beveled face of the rail plate provided with parallel oblong slots shank against one end of the slot, and the 30 3' and 3, spaced apart a distance substanprojecting portion of the head is over the tiallye ual to the width of the flange 4 of the flange of the rail, then by driving the spike rail 5, w ich it is to be understood may be of into the tie the beveled facel2 will act upon any usual construction of a rail the wooden body of the tie and tend to cant aid slots are du licates of each other and the spike shank to force the shoulder thereof toward its end of the slot and as soon as the 35 are arranged ara el with each other, so that spike has been driven sufficiently to bring the top face of the shoulder flush with the the slots Wll extend alongside the flanges when the rail is in lace on the plate.

6, 6 designate t he shanks of two spikes under face of the plate, the resiliency of the extending through the slots 3, 3, and prowooden tie will shift the u per portion of the shank along the flange of t e rail to bring the s oulder underneath the plate, as indicated in Fig. 3, and thereupon the spike locks the rail and plate together and they cannot be loosened from the tie, except when the spike is again forced back into. position for withdrawal, or the late is driven to bring the slot above the s oulder. The usual friction heads 7. Each of said shanks extends from one edge of its head, so that the head projects mainly'from only one side of the spike in the ordinary manner of constructing rail- -8.is a shoulder flat on its up er face and. located a distance below the level of the under-face of the head corresponding to the plate and tie is sufiiclent to prevent any e distance between the top of the shoulder t-ions, therefore the spike will remain firml and the under-face of the head 7 may be seated in the tie for an indefinite eriod of varied to accommodate various thicknesses time. Consequently, the full lengt of each of flange and rail plate. The shoulder 8 is in of the spikes below the plate remains in the 1.10 55 the form of a lateral lip having an abrupt or tie as finally driven, and possibility of tilting flat upper surface and tapering downwardly the rail is reduced to a minimum. Each of 

